Methods and Apparatuses for Collision Control of Sidelink Communications in Wireless Communication Systems

2. The wireless communication device of claim 1, wherein the priority parameter is contained in Sidelink Control Information (SCI) carried on the PSSCH.

7. The wireless communication device of claim 4, wherein an SLSS ID of the first SLSS is derived from a group ID of one of the plurality of groups that the wireless communication device belongs to.

8. The wireless communication device of claim 1, wherein the wireless communication device is a scheduler source device in a group of wireless communication devices.

9. The wireless communication device of claim 1, wherein the channel carrying the first SLSS is determined to be colliding with the PSFCH when an occasion of the first SLSS overlaps the PSFCH in at least one Orthogonal Frequency Division Multiplexing (OFDM) symbol in time domain.

10. The wireless communication device of claim 1, wherein the channel carrying the first SLSS is determined to be colliding with the PSFCH when an occasion of the first SLSS overlaps the PSFCH in at least one resource element.

11. The wireless communication device of claim 1, wherein the channel carrying the first SLSS is determined to be colliding with the PSFCH when at least part of the first SLSS and the PSFCH are configured to be transmitted through a plurality of spatial filters at a same time.

13. The wireless communication device of claim 1, wherein the first SLSS is one of a Long Term Evolution (LTE) SLSS, an LTE Physical Broadcast Channel (PBCH), a New Radio (NR) SLSS, an NR PBCH, and an NR Synchronization Signal/PBCH Block (SSB).

15. The method of claim 14, wherein the priority parameter is contained in Sidelink Control Information (SCI) carried on the PSSCH.

20. The method of claim 17, wherein an SLSS ID of the first SLSS is derived from a group ID of one of the plurality of groups that the wireless communication device belongs to.

21. The method of claim 14, wherein the wireless communication device is a scheduler source device in a group of wireless communication devices.

22. The method of claim 14, wherein the occasion of channel carrying the first SLSS is determined to be colliding with the PSFCH when an occasion of the first SLSS overlaps the PSFCH in at least one Orthogonal Frequency Division Multiplexing (OFDM) symbol in time domain.

23. The method of claim 14, wherein the channel carrying the first SLSS is determined to be colliding with the PSFCH when an occasion of the first SLSS overlaps the PSFCH in at least one resource element.

24. The method of claim 14, wherein the channel carrying the first SLSS is determined to be colliding with the PSFCH when at least part of the first SLSS and the PSFCH are configured to be transmitted through a plurality of spatial filters at a same time.

26. The method of claim 14, wherein the first SLSS is one of a Long Term Evolution (LTE) SLSS, an LTE Physical Broadcast Channel (PBCH), a New Radio (NR) SLSS, an NR PBCH, and an NR Synchronization Signal/PBCH Block (SSB).